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Nepouite
Nepouite

Rosasite
Rosasite



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X
Nepouite
X
Rosasite

Nepouite and Rosasite Optical Properties

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Optical Properties

Luster

Waxy, Pearly
Silky, Vitreous

Pleochroism

Weak
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

Dispersion

0.030.03
0.005 1
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Transparency

-
-

Refractive Index

1.600-1.6301.672-1.688
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

-99990.139-0.143
0 0.296
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Clarity

-
-

Nepouite and Rosasite Optic Character

Nepouite and Rosasite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Nepouite and Rosasite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Nepouite and Rosasite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Nepouite and Rosasite Transparency

Similar to their colors, Nepouite and Rosasite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Nepouite is while Nepouite is in appearance.